A highly efficient UV-emitting Mg3Y2Ge3O12:Bi3+ crystal as a fluorescent irradiation source for use in heavy oil viscosity reduction

Developing dual-mode material with ultraviolet and visible persistent luminescence for multi-mode anti-counterfeiting and information encryption

“…Compared with the Mg 3 Y 2 Ge 3 O 12 reference (PDF#89-6603), the XRD peaks of all samples are slightly shifted toward higher 2 θ angles. 30 This shows that the substitution of Lu 3+ for large Y 3+ ions decreases the cell volume. The results indicate that the MLGO belongs to the inverse-garnet-type cubic structure related to the space group Ia 3 d .…”

Dual‐mode optical thermometry and multicolor anti‐counterfeiting based on Bi3+/Er3+ co‐activated BaGd2O4 phosphor

“…When Bi 3+ ions are doped into the host, there is a strong absorption band from 250 to 400 nm in DRS, which originates from the energy level transition of 1 S 0 → 3 P 1 17 . The absorption peaks appeared at 373, 528, 555, and 668 nm after Er 3+ ions were added into the host, which derive from the energy level transition of 4 I 15/2 → 4 G 11/2 , 4 I 15/2 → 2 H 11/2 , 4 I 15/2 → 4 S 3/2 , and 4 I 15/2 → 4 F 9/2 , respectively 18 . In addition, the corresponding absorption peaks of Bi 3+ and Er 3+ ions were detected in the samples co‐doped with Bi 3+ and Er 3+ ions.…”

A Novel White-Light-Emitting Phosphor Based on Bi3+-Doped BaLu2MgGa2Si2O12 for Near-UV Excited White LEDs

“…22 Bi 3+ ion is apt to occupy the 8-fold dodecahedron (A lattice sites), and the luminescence is easily tuned through adjusting the crystal field strength, which is originated from various cations substitutions. [23][24][25][26][27][28] However, there is few report on white emitting in the Bi 3+ -doped garnet phosphors. In this work, a novel Bi 3+ activated BaLu 2 MgGa 2 Si 2 O 12 (BLMGSO) phosphor was developed and investigated in detail.…”